I was totally surprised at how great this film.You could feel your paranoia rise as the film went on and as you gradually learned the details of the real situation.

The best films of this genre always show a path and provide a takeaway for being a better person.

The film's masterful storytelling did its job. The message was clear. No need to overdo.

A great movie, one of the best of this year. There was a bit of confusion at one point in the plot, but nothing serious.